Senators introduced Tuesday night a long-awaited immigration bill that seeks to reform what many from both sides of the debate call a broken immigration system. The legislation invests billions of dollars in border security; mandates that all employers verify the legal status of their employ…

WASHINGTON - Five years after it took effect and more than a year after it was upheld by the U.S. Supreme Court, an Arizona law requiring that businesses check the citizenship of every new hire is often disregarded and rarely enforced.